Unlike my friend over at Seeing the Forest, I think it's quite impressive that the minority party (with a little bit of help) managed to whack the Bush tax cut in half.
It's also a stunning reversal.
Let me add more. First, some people really don't seem to understand that the Democrats are in the minority. Second, even the media whores can understand this one as a case of 'Bush not getting what he wants.' The previous bill cut $100 billion - and that was a disaster because $100B isn't really meaningful enough for Democrats to be able to claim any victory at all, while it is enough for Republicans to claim they love reaching into your wallet and stealing your money. Third it's going to piss off the wingnuts in the House, and there's a chance they won't be willing to compromise when the time comes to reconcile the new bill, giving the Senate a second chance to (maybe) kill the thing outright.